If a person breathes in 22m3 of air per day and the air contains 0.205 milligrams of particulates per m3
how many grams of particulates does the person breathe in per day?
2006-12-20 01:22:36 · 3 answers · asked by Matthew S 1 in Science & Mathematics ➔ Chemistry
Person breathes in 22m3 of air per day
Air contains 0.205 milligrams of particulates per m3
In one day person inhales
22*0.205=4.51 mg of particulates
2006-12-20 01:25:02 · answer #1 · answered by Som™ 6 · 0⤊ 0⤋
22m3 is the volume of air intaken...
each 1m3 of air has 0.205mg of particulates...
so 23m3 of air has (23 x 0.205)mg of particulates...
which equals 4.715mg of particulates...
if you want the answer in grams... move the decimal places 3 places to the left... therefore, answer is 0.004715g of particulates.
2006-12-20 01:27:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1000milligrams = 1 gram
so, .205 milligrams =2.05 x 10^-8(10 raised to the power -8)
2006-12-20 01:29:37 · answer #3 · answered by sriramna 1 · 0⤊ 0⤋